package com.checker.springcloud.controller;

import com.checker.springcloud.entity.CommonResult;
import com.checker.springcloud.entity.Payment;
import com.checker.springcloud.lb.LoadBlancer;
import com.sun.org.apache.bcel.internal.generic.IF_ACMPEQ;
import javafx.concurrent.Service;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

@Slf4j
@RestController
public class OrderController {
    public static final String PAYMENT_URL = "http://CLOUD-PAYMENT-SERVICE";

    @Autowired
    private RestTemplate restTemplate;

    @Autowired
    private LoadBlancer loadBlancer;

    @Autowired
    private DiscoveryClient discoveryClient;

    @GetMapping("/consumer/payment")
    public CommonResult<Payment> inserPayment(Payment payment) {

        return restTemplate.postForObject(PAYMENT_URL + "/payment", payment, CommonResult.class);
    }

    @GetMapping("/consumer/payment/{id}")
    public CommonResult getPayment(@PathVariable("id") Long id) {
        return restTemplate.getForObject(PAYMENT_URL + "/payment/" + id, CommonResult.class);
    }

    @GetMapping("/consumer/payment/entity/{id}")
    public CommonResult getPaymentEntity(@PathVariable("id") Long id) {
        ResponseEntity<CommonResult> entity = restTemplate.getForEntity(PAYMENT_URL + "/payment/" + id, CommonResult.class);
        if (entity.getStatusCode().is2xxSuccessful()) {
            return entity.getBody();
        } else {
            return new CommonResult<>(444, "操纵失败");
        }
    }

    @GetMapping("/consumer/payment/lb")
    public String getPaymentLB() {
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if (instances == null || instances.size() <= 0){
            return null;
        }
        ServiceInstance serviceInstance = loadBlancer.instances(instances);
        URI uri = serviceInstance.getUri();

        return restTemplate.getForObject(uri+"/payment/lb",String.class);

    }

}
